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Proceedings Paper

Fast calculation of the Green's functions of a boxed resonator through Ewald's technique
Author(s): A. A. San Blas; A. Coves; M. Bressan; Vincente E. Boria; B. Gimeno; J. V. Morro
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Paper Abstract

A novel technique for the fast calculation of the scalar and dyadic Green's functions of a rectangular cavity resonator is presented. The integral equations satisfied by the quasi-static Green's functions are efficiently solved by combining classical image theory and a decomposition strategy: the proposed technique expresses the electric and magnetic potential produced by the periodic set of images in terms of two rapidly convergent series. The key feature of the presented method lies in the introduction of an auxiliar distribution of Gaussian sources which makes the convergence of the periodic potential to be exponential, thus dramatically reducing the computation effort of the implemented tool. Consequently, the proposed approach becomes an essential algorithm to be readily used in computer-aided-design tools for the efficient electromagnetic characterization of passive microwave devices.

Paper Details

Date Published: 7 April 2004
PDF: 4 pages
Proc. SPIE 5445, Microwave and Optical Technology 2003, (7 April 2004); doi: 10.1117/12.560140
Show Author Affiliations
A. A. San Blas, Univ. Miguel Hernandez de Elche (Spain)
A. Coves, Univ. Miguel Hernandez de Elche (Spain)
M. Bressan, Univ. degli Studi di Pavia (Italy)
Vincente E. Boria, Univ. Politecnica de Valencia (Spain)
B. Gimeno, Univ. de Valencia (Spain)
J. V. Morro, Univ. Politecnica de Valencia (Spain)

Published in SPIE Proceedings Vol. 5445:
Microwave and Optical Technology 2003
Jaromir Pistora; Kamil Postava; Miroslav Hrabovsky; Banmali S. Rawat, Editor(s)

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